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View Full Version : Optima Mid LWB gearing


percymon
26-03-2013, 04:52 PM
I dare say this has been asked before but my search wasn't too revealing

I have a new 74T Kyosho spur gear, so assume this is 0.6Mod pitch

I'll be running a 13.5T brushless motor, nothing too extreme !

Can someone give me an idea on pinion size as a starting point - 19tooth ??